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GB2008903B - Amplifier arrangements - Google Patents

Amplifier arrangements

Info

Publication number
GB2008903B
GB2008903B GB7845029A GB7845029A GB2008903B GB 2008903 B GB2008903 B GB 2008903B GB 7845029 A GB7845029 A GB 7845029A GB 7845029 A GB7845029 A GB 7845029A GB 2008903 B GB2008903 B GB 2008903B
Authority
GB
United Kingdom
Prior art keywords
amplifier arrangements
arrangements
amplifier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB7845029A
Other versions
GB2008903A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Company PLC
Original Assignee
General Electric Company PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Company PLC filed Critical General Electric Company PLC
Priority to GB7845029A priority Critical patent/GB2008903B/en
Publication of GB2008903A publication Critical patent/GB2008903A/en
Application granted granted Critical
Publication of GB2008903B publication Critical patent/GB2008903B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
GB7845029A 1977-08-17 1978-11-17 Amplifier arrangements Expired GB2008903B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7845029A GB2008903B (en) 1977-08-17 1978-11-17 Amplifier arrangements

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3452977 1977-08-17
GB7845029A GB2008903B (en) 1977-08-17 1978-11-17 Amplifier arrangements

Publications (2)

Publication Number Publication Date
GB2008903A GB2008903A (en) 1979-06-06
GB2008903B true GB2008903B (en) 1982-06-30

Family

ID=26262320

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7845029A Expired GB2008903B (en) 1977-08-17 1978-11-17 Amplifier arrangements

Country Status (1)

Country Link
GB (1) GB2008903B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4377858A (en) * 1980-10-23 1983-03-22 International Telephone And Telegraph Corporation Digital two-to-four wire converter for full duplex signals
US4351060A (en) * 1980-10-23 1982-09-21 International Telephone And Telegraph Corporation Automatic, digitally synthesized matching line terminating impedance
US4381561A (en) * 1980-10-23 1983-04-26 International Telephone And Telegraph Corporation All digital LSI line circuit for analog lines
DE3047425A1 (en) * 1980-12-17 1982-07-15 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt ARRANGEMENT FOR REALIZING THE ECHOLOESCHER COEFFICIENTS FOR COMBINED ADAPTIVE ECHO ERASE AND EQUALIZATION
US4491701A (en) * 1981-03-05 1985-01-01 At&T Bell Laboratories Adaptive filter including a far end energy discriminator
FR2528643A1 (en) * 1982-06-14 1983-12-16 Trt Telecom Radio Electr METHOD FOR REDUCING THE CONVERGENCE TIME OF AN ECHO CANCER AND DEVICE USED FOR CARRYING OUT SAID METHOD
FR2540314A1 (en) * 1983-01-31 1984-08-03 Trt Telecom Radio Electr METHOD FOR INITIALIZING COEFFICIENT FILTERS IN A NEAR-AND-NEAR ECHO CANCELLATION DEVICE AND DEVICE FOR IMPLEMENTING SAID METHOD
DE3376943D1 (en) * 1983-06-30 1988-07-07 Ibm Starting-up method for an echo canceller filter, and communication system using this method
GB2162679B (en) * 1984-06-25 1988-04-20 Duracell Int Auxiliary portable power supply
US4584441A (en) * 1984-09-07 1986-04-22 At&T Bell Laboratories Bidirectional adaptive voice frequency repeater
US4712235A (en) * 1984-11-19 1987-12-08 International Business Machines Corporation Method and apparatus for improved control and time sharing of an echo canceller
US4845746A (en) * 1987-06-23 1989-07-04 Rockwell International Corporation Echo canceller with relative feedback control

Also Published As

Publication number Publication date
GB2008903A (en) 1979-06-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee